Question
What is one advantage of electromagnets?
a. They can be switched on and off.
b. They are usually very small.
c. They work even during an electrical outage.
d. They can have more than two poles.
a. They can be switched on and off.
b. They are usually very small.
c. They work even during an electrical outage.
d. They can have more than two poles.
Answers
GPT 3.5
a. They can be switched on and off.